Wasn't it -1 before, just to neutralize the +1 frag that comes from the bug?
Also, in cases of a draw game, wouldn't like +5minutes to the time be better than the 1 frag only? I remember +5 minutes to the time was used in Serioussam.su Winter Tournament, worked well in my opinion.
Remember to include pause option in the server, especially now that it's time limit based tournament.